Note 8 - Right-of-use Asset and Lease Liability - Operating Leases Assets and Liabilities (Details) - USD ($)	May 31, 2019	Feb. 28, 2019	Jan. 01, 2019
Right-of-use assets in exchange for operating lease obligations	$ 78,263
Less: accumulated depreciation	(42,392)
Right-of-use assets, net	35,871		$ 78,263
Operating Lease, Liability, Total	$ 36,353		$ 78,263
Weighted-average remaining lease term (in years) (Year)	2 years
Weighted-average discount rate	2.48%